WebClient.UploadDataAsync WebClient.UploadDataAsync WebClient.UploadDataAsync WebClient.UploadDataAsync Method

Definition

Uploads a data buffer to a resource identified by a URI. This method does not block the calling thread.

Overloads

UploadDataAsync(Uri, String, Byte[]) UploadDataAsync(Uri, String, Byte[]) UploadDataAsync(Uri, String, Byte[]) UploadDataAsync(Uri, String, Byte[])

Uploads a data buffer to a resource identified by a URI, using the specified method. This method does not block the calling thread.

UploadDataAsync(Uri, String, Byte[], Object) UploadDataAsync(Uri, String, Byte[], Object) UploadDataAsync(Uri, String, Byte[], Object) UploadDataAsync(Uri, String, Byte[], Object)

Uploads a data buffer to a resource identified by a URI, using the specified method and identifying token.

UploadDataAsync(Uri, Byte[]) UploadDataAsync(Uri, Byte[]) UploadDataAsync(Uri, Byte[]) UploadDataAsync(Uri, Byte[])

Uploads a data buffer to a resource identified by a URI, using the POST method. This method does not block the calling thread.

UploadDataAsync(Uri, String, Byte[]) UploadDataAsync(Uri, String, Byte[]) UploadDataAsync(Uri, String, Byte[]) UploadDataAsync(Uri, String, Byte[])

Uploads a data buffer to a resource identified by a URI, using the specified method. This method does not block the calling thread.

public:
 void UploadDataAsync(Uri ^ address, System::String ^ method, cli::array <System::Byte> ^ data);
public void UploadDataAsync (Uri address, string method, byte[] data);
member this.UploadDataAsync : Uri * string * byte[] -> unit
Public Sub UploadDataAsync (address As Uri, method As String, data As Byte())

Parameters

address
Uri Uri Uri Uri

The URI of the resource to receive the data.

method
String String String String

The method used to send the data to the resource. If null, the default is POST for http and STOR for ftp.

data
Byte[]

The data buffer to send to the resource.

Exceptions

The URI formed by combining BaseAddress and address is invalid.

-or-

An error occurred while opening the stream.

-or-

There was no response from the server hosting the resource.

Remarks

This method sends a data buffer to a resource. The data buffer is sent asynchronously using thread resources that are automatically allocated from the thread pool. The data is not encoded. To receive notification when the data upload completes, add an event handler to the UploadDataCompleted event.

This method does not block the calling thread while the data is being sent. To send data and block while waiting for the server's response, use one of the UploadData methods.

Asynchronous operations that have not completed can be canceled using the CancelAsync method.

If the BaseAddress property is not an empty string (""), and address does not contain an absolute URI, address must be a relative URI that is combined with BaseAddress to form the absolute URI of the requested data. If the QueryString property is not an empty string, it is appended to address.

Note

This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing in the .NET Framework.

UploadDataAsync(Uri, String, Byte[], Object) UploadDataAsync(Uri, String, Byte[], Object) UploadDataAsync(Uri, String, Byte[], Object) UploadDataAsync(Uri, String, Byte[], Object)

Uploads a data buffer to a resource identified by a URI, using the specified method and identifying token.

public:
 void UploadDataAsync(Uri ^ address, System::String ^ method, cli::array <System::Byte> ^ data, System::Object ^ userToken);
public void UploadDataAsync (Uri address, string method, byte[] data, object userToken);
member this.UploadDataAsync : Uri * string * byte[] * obj -> unit
Public Sub UploadDataAsync (address As Uri, method As String, data As Byte(), userToken As Object)

Parameters

address
Uri Uri Uri Uri

The URI of the resource to receive the data.

method
String String String String

The method used to send the data to the resource. If null, the default is POST for http and STOR for ftp.

data
Byte[]

The data buffer to send to the resource.

userToken
Object Object Object Object

A user-defined object that is passed to the method invoked when the asynchronous operation completes.

Exceptions

The URI formed by combining BaseAddress and address is invalid.

-or-

An error occurred while opening the stream.

-or-

There was no response from the server hosting the resource.

Remarks

This method sends a data buffer to a resource. The data buffer is sent asynchronously using thread resources that are automatically allocated from the thread pool. The data is not encoded. To receive notification when the data upload completes, add an event handler to the UploadDataCompleted event.

This method does not block the calling thread while the data is being sent. To send data and block while waiting for the server's response, use one of the UploadData methods.

Asynchronous operations that have not completed can be canceled using the CancelAsync method.

If the BaseAddress property is not an empty string (""), and address does not contain an absolute URI, address must be a relative URI that is combined with BaseAddress to form the absolute URI of the requested data. If the QueryString property is not an empty string, it is appended to address.

Note

This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing in the .NET Framework.

UploadDataAsync(Uri, Byte[]) UploadDataAsync(Uri, Byte[]) UploadDataAsync(Uri, Byte[]) UploadDataAsync(Uri, Byte[])

Uploads a data buffer to a resource identified by a URI, using the POST method. This method does not block the calling thread.

public:
 void UploadDataAsync(Uri ^ address, cli::array <System::Byte> ^ data);
public void UploadDataAsync (Uri address, byte[] data);
member this.UploadDataAsync : Uri * byte[] -> unit
Public Sub UploadDataAsync (address As Uri, data As Byte())

Parameters

address
Uri Uri Uri Uri

The URI of the resource to receive the data.

data
Byte[]

The data buffer to send to the resource.

Exceptions

The URI formed by combining BaseAddress and address is invalid.

-or-

An error occurred while opening the stream.

-or-

There was no response from the server hosting the resource.

Remarks

This method sends a data buffer to a resource. The data buffer is sent asynchronously using thread resources that are automatically allocated from the thread pool. The data is not encoded. To receive notification when the data upload completes, add an event handler to the UploadDataCompleted event.

This method does not block the calling thread while the data is being sent. To send data and block while waiting for the server's response, use one of the UploadData methods.

Asynchronous operations that have not completed can be canceled using the CancelAsync method.

If the BaseAddress property is not an empty string (""), and address does not contain an absolute URI, address must be a relative URI that is combined with BaseAddress to form the absolute URI of the requested data. If the QueryString property is not an empty string, it is appended to address.

This method uses the STOR command to upload an FTP resource. For an HTTP resource, the POST method is used.

Note

This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing in the .NET Framework.

Applies to